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Finding the Fourth Proportional to 605,023.40, 907,498.38 and 267,965.12

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Solution

The fourth proportional to 605,023.40, 907,498.38 and 267,965.12 is: 401,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,023.40 : 907,498.38 = 267,965.12 : x
  2. Step 2: Convert to fraction form
    605,023.40/907,498.38 = 267,965.12/x
  3. Step 3: Cross multiply
    605,023.40x = 907,498.38 × 267,965.12
  4. Step 4: Simplify right side
    605,023.40x = 243,177,912,296.51
  5. Step 5: Solve for x
    x = 243,177,912,296.51/605,023.40
  6. Step 6: Final answer
    x = 401,931.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.